diff --git a/heap sort.cpp b/heap sort.cpp
new file mode 100644
index 0000000..f9d424f
--- /dev/null
+++ b/heap sort.cpp	
@@ -0,0 +1,67 @@
+
+#include <iostream> 
+  
+using namespace std; 
+  
+
+void heapify(int arr[], int n, int i) 
+{ 
+    int largest = i; 
+    int l = 2*i + 1; 
+    int r = 2*i + 2; 
+  
+
+    if (l < n && arr[l] > arr[largest]) 
+        largest = l; 
+  
+    
+    if (r < n && arr[r] > arr[largest]) 
+        largest = r; 
+  
+    
+    if (largest != i) 
+    { 
+        swap(arr[i], arr[largest]); 
+  
+        
+        heapify(arr, n, largest); 
+    } 
+} 
+  
+
+void heapSort(int arr[], int n) 
+{ 
+    
+    for (int i = n / 2 - 1; i >= 0; i--) 
+        heapify(arr, n, i); 
+  
+    
+    for (int i=n-1; i>0; i--) 
+    { 
+        
+        swap(arr[0], arr[i]); 
+  
+        
+        heapify(arr, i, 0); 
+    } 
+} 
+  
+
+void printArray(int arr[], int n) 
+{ 
+    for (int i=0; i<n; ++i) 
+        cout << arr[i] << " "; 
+    cout << "\n"; 
+} 
+  
+
+int main() 
+{ 
+    int arr[] = {12, 11, 13, 5, 6, 7}; 
+    int n = sizeof(arr)/sizeof(arr[0]); 
+  
+    heapSort(arr, n); 
+  
+    cout << "Sorted array is \n"; 
+    printArray(arr, n); 
+}